Adjustable rotary rocking chair

ABSTRACT

An adjustable rotary rocking chair having a chair frame assembly A, an adjustment mechanism B, and a support tube assembly C, wherein the adjustment mechanism B is detachably connected with the chair frame assembly A and is connected with the support tube assembly C in an insertion manner. The adjustable rotary rocking chair can swing and rotate, has higher flexibility and adaptability due to the fact that the height of the rocking chair and the height of the support tubes can be automatically adjusted by users, is portable through a folding design, and can be used indoors and outdoors.

BACKGROUND OF THE INVENTION 1. Technical Field

The disclosure relates to the technical field of rocking chairs, in particular to an adjustable rotary rocking chair.

2. Description of Related Art

Rocking chairs capable of swinging forwards and backwards are widely used by people for rest. With the improvement of living standards, the requirements of people for leisure and entertainment are gradually increased. The traditional rocking chairs cannot be adjusted according to the specific conditions of different users because most components of such chairs are fixedly connected, thus having relatively poor adaptability and flexibility, and consequentially, the traditional rocking chairs are not portable and cannot be used both indoors and outdoors. Therefore, the traditional rocking chairs need to be improved to meet the requirements of people for leisure activities such as indoor work and rest and outdoor fishing and hunting.

BRIEF SUMMARY OF THE INVENTION

Based on the above usage requirements, the objective of the disclosure is to provide an adjustable rotary rocking chair.

The technical solution adopted by the disclosure to fulfill the above-mentioned objective of the disclosure is as follows:

An adjustable rotary rocking chair comprises a chair frame assembly, an adjustment mechanism, and a support tube assembly, wherein the adjustment mechanism is detachably connected with the chair frame assembly and is connected with the support tube assembly in an insertion manner.

The adjustment mechanism includes an adjustment handle, a chair frame connection plate, a square neck bolt, an air cylinder connection plate, a swing spring sleeve, a connection plate rivet, a swing spring, and a spring pressure adjustment knob, wherein the chair frame connection plate is installed at the bottom of the chair frame assembly, rivet installation holes and handle installation holes are formed in two symmetrical side plates of the chair frame connection plate and two symmetrical side plates of the air cylinder connection plate, the connection plate rivet penetrates through the rivet installation holes to rivet the chair frame connection plate to the air cylinder connection plate, one handle installation hole of the chair frame connection plate is a strip-shaped hole, the adjustment handle penetrates through the strip-shaped hole of the chair frame connection plate and the handle installation hole, in the same side, of the air cylinder connection plate and then penetrates through two handle installation holes on the other side, and the square neck bolt sequentially penetrates through a square hole in the chair frame connection plate and a circular hole in the air cylinder connection plate to connect the swing spring sleeve, the swing spring, and the spring pressure adjustment knob together in a threaded manner.

Furthermore, the support tube assembly includes an upper support tube fixing base, four upper support tube connectors, two stretchable upper support tubes, two support tube locking mechanisms, two lower support tubes, and two necking upper support tubes, wherein the upper support tube fixing base is connected with the air cylinder connection plate of the adjustment mechanism, upper ends of the two stretchable upper support tubes and upper ends of the two necking upper support tubes are respectively received in the upper support tube connectors to be riveted to the upper support tube fixing base, and the stretchable upper support tubes are connected with the lower support tubes through the support tube locking mechanisms.

Furthermore, each support tube locking mechanism includes a lock case, a hand lever riveted to the lock case, a spacing ring, a compression spring, and a protective shell, wherein a longitudinal through hole and a side opening communicated with the longitudinal through hole are formed in the lock case, a limit groove is formed in the internal wall, opposite to the side opening, of the lock case, a circular ring of the spacing ring stretches into the side opening to make the end of the circular ring embedded into the limit groove, and one lower support tube stretches into the circular ring from the lower end of the longitudinal through hole and then penetrates through the circular ring to stretch into one stretchable upper support tube; and the compression spring is arranged between the lower end of a handle of the spacing ring and the lock case below the side opening, and the upper end of the handle of the spacing ring abuts against the hand lever.

Furthermore, the support tube assembly further includes a connection mechanism, and the upper support tube fixing base is connected with the air cylinder connection plate through the connection mechanism; and

The connection mechanism includes an air cylinder, a bushing, four horizontal pull rods, and a horizontal pull rod base fixing tube, wherein a cylinder barrel at the upper end of the air cylinder is sequentially inserted into the bushing and the air cylinder connection plate, and a cylinder piston at the lower end of the air cylinder is fixed in the pull rod base fixing tube; and the four horizontal pull rods have one ends respectively riveted to the horizontal pull rod base fixing tube and the other ends respectively riveted to the two stretchable upper support tubes and the two necking upper support tubes.

Furthermore, the support tube assembly further includes four universal support pads respectively installed at lower ends of the two lower support tubes and lower ends of the two necking upper support tubes.

Furthermore, the chair frame assembly includes a chair cloth, a U-shaped back tube, two turnover bases, two armrest tubes, two armrest connection bases, a vertical armrest tube, and a seat frame, wherein a back end and a cushion end of the chair cloth respectively wrap the U-shaped back tube and a U-shaped tube of the seat frame, the two turnover bases have upper ends respectively riveted to two free ends of the U-shaped back tube and front ends riveted to two symmetrical rear ends of the U-shaped tube of the seat frame, the two armrest tubes having lower ends provided with the armrest connection bases are respectively riveted to two symmetrical ends of the U-shaped back tube, and the vertical armrest tube has an upper end and a lower end respectively riveted to one armrest connection base and the front end of the U-shaped tube of the seat frame.

Furthermore, the vertical armrest tube includes two upper vertical armrest tubes, two lower vertical armrest tubes, and two armrest locking mechanisms, wherein the upper vertical armrest tubes are locked on the lower vertical armrest tubes through the armrest rotation locking mechanisms.

Furthermore, each armrest rotation locking mechanism includes a spring seat, a spring, a limit slider, a button holder, a button, and a rivet, wherein cavities matched with the limit slider are formed in the spring seat and the button holder, the rivet sequentially penetrates through the spring seat, the spring, the limit slider, and the button holder, and the button is arranged on one side of the button holder and is pressed or released to drive the limit slider to entirely or partially disengage from the cavity in the button holder.

Compared with the prior art, the disclosure has the following beneficial effects: the adjustable rotary rocking chair can swing and rotate, has higher flexibility and adaptability due to the fact that the height of the rocking chair and the height of the support tubes can be automatically adjusted by users, is portable through a folding design, and can be used indoors and outdoors.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 is a schematic diagram of an adjustable rotary rocking chair in an unfolded state;

FIG. 2 is a schematic diagram of the unfolded adjustable rotary rocking chair in a quick release state;

FIG. 3 is a schematic diagram of the folded adjustable rotary rocking chair in the quick release state;

FIG. 4 is an exploded view of a chair frame;

FIG. 5 is a disassembled view of an armrest rotation locking mechanism;

FIG. 6 a is a front view of the armrest rotation locking mechanism in a locking state;

FIG. 6 b is a side view of the armrest rotation locking mechanism in the locking state;

FIG. 7 a is a front view of the armrest rotation locking mechanism in an unlocking state;

FIG. 7 b is a side view of the armrest rotation locking mechanism in the unlocking state;

FIG. 8 is a disassembled view of an adjustment mechanism;

FIG. 9 a is a schematic diagram of the adjustment mechanism at an angle in an unadjusted state;

FIG. 9 b is a schematic diagram of the adjustment mechanism at a second angle in the unadjusted state;

FIG. 9 c is a schematic diagram of the adjustment mechanism at a third angle in the unadjusted state;

FIG. 10 a is a schematic diagram of the adjustment mechanism at an angle in an adjusted state;

FIG. 10 b is a schematic diagram of the adjustment mechanism at a second angle in the adjusted state;

FIG. 10 c is a schematic diagram of the adjustment mechanism at a third angle in the adjusted state;

FIG. 11 is an exploded view of the chair frame;

FIG. 12 is a disassembled view of a locking mechanism;

FIG. 13 is a schematic diagram of the locking mechanism in a locking state;

FIG. 14 is a schematic diagram of the locking mechanism in an unlocking state.

DETAILED DESCRIPTION OF THE INVENTION

The technical solution of the disclosure is further expounded as follows in combination with the embodiments so as to be better understood. Those skilled in the art can easily appreciate other advantages and effects of the disclosure on the basis of the contents in the specification, and can also implement or apply the disclosure in other embodiments and make various transformations or changes on the details in the specification on the basis of different viewpoints and applications without deviating from the spirit of the disclosure.

As shown in FIG. 1 to FIG. 3 , an adjustable rotary rocking chair comprises a chair frame assembly A, an adjustment mechanism B, and a support tube assembly C, wherein the adjustment mechanism B is detachably connected with the chair frame assembly A and is connected with the support tube assembly C in an insertion manner. Particularly, the chair frame assembly A and the adjustment mechanism B are connected through bolts and are then fixed to the support tube assembly C in an insertion manner.

As shown in FIG. 4 to FIG. 7 b , the chair frame assembly A in this embodiment primarily consists of a chair cloth 1, a back tube 2, two turnover bases 3, two armrest tubes 4, two armrest connection bases 5, two upper vertical armrest tubes 6, two spring seats 7, two springs 8, two limit sliders 9, two button holders 10, two buttons 11, two lower vertical armrest tubes 12, two rivets 13, and a seat frame 14.

As shown in FIG. 8 to FIG. 10 c , the adjustment mechanism B in this embodiment primarily consists of an adjustment handle 15, a chair frame connection plate 16, a square neck bolt 17, an air cylinder connection plate 18, a swing spring sleeve 19, a connection plate rivet 20, a swing spring 21, and a spring pressure adjustment knob 22.

As shown in FIG. 11 to FIG. 14 , the support tube assembly C in this embodiment primarily consists of an air cylinder 23, a bushing 24, an upper support tube fixing base 25, four upper support tube connectors 26, two stretchable upper support tubes 27, two support tube locking mechanisms 28, two lower support tubes 29, four universal support pads 30, four horizontal pull rods 31, a horizontal pull rod base fixing seat 32, and two necking upper support tubes 33.

Particularly, the chair frame assembly A includes the chair cloth 1, the U-shaped back tube 2, the two turnover bases 3, the two armrest tubes 4, the two armrest connection bases 5, the vertical armrest tubes, and the seat frame 14, wherein a back end and a cushion end of the chair cloth 1 respectively wrap the U-shaped back tube 2 and a U-shaped tube of the seat frame 14, the two turnover bases 3 have upper ends respectively riveted to two free ends of the U-shaped back tube 2 and front ends riveted to two symmetrical rear ends of the U-shaped tube of the seat frame 14, the two armrest tubes 4 having lower ends provided with the armrest connection bases 5 are respectively riveted to two symmetrical ends of the U-shaped back tube 2, and the vertical armrest tube has an upper end and a lower end respectively riveted to one armrest connection base 5 and the front end of the U-shaped tube of the seat frame 14. The chair frame connection plate 16 of the adjustment mechanism is fixedly installed on the seat frame 14.

In this embodiment, the vertical armrest tube of the chair frame assembly includes the two upper vertical armrest tubes 6, the two lower vertical armrest tubes 12, and two armrest locking mechanisms, wherein the upper vertical armrest tubes 6 are locked on the lower vertical armrest tubes 12 through the armrest rotation locking mechanisms.

In this embodiment, each armrest rotation locking mechanism of the chair frame assembly includes one spring seat 7, one spring 8, one limit slider 9, one button holder 10, one button 11, and one rivet 13, wherein cavities matched with the limit slider 9 are formed in the spring seat 7 and the button holder 10, the rivet 13 sequentially penetrates through the spring seat 7, the spring 8, the limit slider 9, and the button holder 10, and the button 11 is arranged on one side of the button holder 10 and is pressed or released to drive the limit slider 9 to entirely or partially disengage from the cavity in the button holder 10.

In the chair frame assembly, the chair cloth 1 wraps the U-shaped back tube 2 and the U-shaped circular tube of the seat frame 14; one end of the U-shaped back tube 2 is inserted into a hole in one turnover base 3 and is connected with the turnover base 3 through a rivet, and the other end of the U-shaped back tube 2 is inserted into a hole in the other turnover base 3 and is connected with the turnover base 3 through a rivet; the two riveted turnover bases 3 are erected on the U-shaped circular tube of the seat frame 14 and are respectively connected to the U-shaped circular tube of the seat frame 14 through rivets to rotate around the rivets, so that the back tube 2 can turn to be folded and unfolded; and the two armrest tubes 4 having the armrest connection bases 5 fixed thereon are respectively riveted to two sides of the back tube 2, and the upper vertical armrest tubes 6 and the lower vertical armrest tubes 12 which are connected with the armrest rotation locking mechanisms are respectively connected to the armrest connection bases 5 and the seat frame 14. Wherein, in each armrest rotation locking mechanism (as shown in FIG. 5 ), the spring seat 7 internally provided with the spring 8 and the button holder 10 internally provided with the limit slider 9 are connected through the rivet 13, and the button 11 is pressed to push the limit slider 9 to compress the spring 8 so as to make the limit slider 9 completely disengage from the button holder 10, so that rotation of the spring seat 7 and the button holder 10 is fulfilled (as shown in FIG. 7 a and FIG. 7 b ). The cavities through which the limit slider 9 enters and exits from the spring seat 7 and the button holder 10 are similar to the outline of the limit slider 9 in shape and are slightly larger than the outline of the limit slider 9, so that after the button 11 is released, the limit slider 9 abuts against the button holder 10 under the effect of the spring 8 until the limit slider 9 enters the cavity of the button holder 10 when the cavities of the spring seat 7 and the button holder 10 coincide. The limit slider 9 has a half located in the spring seat 7 and the other half located in the button holder 10 to limit the rotation of the spring seat 7 and the button holder 10 (as shown in FIG. 6 a and FIG. 6 b ).

Particularly, the adjustment mechanism B includes the adjustment handle 15, the chair frame connection plate 16, the square neck bolt 17, the air cylinder connection plate 18, the swing spring sleeve 19, the connection plate rivet 20, the swing spring 21, and the spring pressure adjustment knob 22, wherein the chair frame connection plate 16 is installed at the bottom of the chair frame assembly A, rivet installation holes and handle installation holes are formed in two symmetrical side plates of the chair frame connection plate 16 and two symmetrical side plates of the air cylinder connection plate 18, the connection plate rivet 20 penetrates through the rivet installation holes to rivet the chair frame connection plate 16 to the air cylinder connection plate 18, one handle installation hole of the chair frame connection plate 16 is a strip-shaped hole, the adjustment handle 15 penetrates through the strip-shaped hole of the chair frame connection plate 16 and the handle installation hole, in the same side, of the air cylinder connection plate 18 and then penetrates through two handle installation holes on the other side, and the square neck bolt 17 sequentially penetrates through a square hole in the chair frame connection plate 16 and a circular hole in the air cylinder connection plate 18 to connect the swing spring sleeve 19, the swing spring 21, and the spring pressure adjustment knob 22 together in a threaded manner.

In the adjustment mechanism, the connection plate rivet 20 penetrates through rivet installation holes in the middle of the chair frame connection plate 16 and in the middle of the air cylinder connection plate 18 to rivet the chair frame connection plate 16 and the air cylinder connection plate 18 together, so that the chair frame connection plate 16 and the air cylinder connection plate 18 can axially rotate around the connection plate rivet 20; the adjustment handle 15 penetrates through the strip-shaped hole of the chair frame connection plate 16 and the handle installation hole, in the same side, of the air cylinder connection plate 18, that is, the adjustment handle 15 can move in its axial direction and rotate along its axis (as shown in FIG. 9 ); and the square neck bolt 17 penetrates through the square hole in the chair frame connection plate 16 and the circular hole in the air cylinder connection plate 18 to connect the swing spring sleeve 19, the swing spring 21, and the spring pressure adjustment knob 22 together in a threaded manner.

Particularly, the support tube assembly C in this embodiment includes the upper support tube fixing base 25, the four upper support tube connectors 26, the two stretchable upper support tubes 27, the two support tube locking mechanisms 28, the two lower support tubes 29, and the two necking upper support tubes 33, wherein the upper support tube fixing base 25 is connected with the air cylinder connection plate 18 of the adjustment mechanism, upper ends of the two stretchable upper support tubes 27 and upper ends of the two necking upper support tubes 33 are respectively received in the upper support tube connectors 26 to be riveted to the upper support tube fixing base 25, and the stretchable upper support tubes 27 are connected with the lower support tubes 29 through the support tube locking mechanisms 28.

Each support tube locking mechanism 28 includes a lock case 34, a hand lever 35 riveted to the lock case 34, a spacing ring 37, a compression spring 38, and a protective shell 36, wherein a longitudinal through hole and a side opening communicated with the longitudinal through hole are formed in the lock case 34, a limit groove is formed in the internal wall, opposite to the side opening, of the lock case 34, a circular ring of the spacing ring 37 stretches into the side opening to make the end of the circular ring embedded into the limit groove, and one lower support tube 29 stretches into the circular ring from the lower end of the longitudinal through hole and then penetrates through the circular ring to stretch into one stretchable upper support tube 27; and the compression spring 38 is arranged between the lower end of a handle of the spacing ring 37 and the lock case 34 below the side opening, and the upper end of the handle of the spacing ring 37 abuts against the hand lever 35. The stretchable upper support tube 27 is pressed into the upper end of the lock case 34, the opening is formed in the lower part of the lock case, the limit groove is formed in the internal wall, opposite to the opening, of the lock case, the uppermost end of the opening in the lock case is higher than the limit groove, the circular ring of the spacing ring is placed into the lock case via the opening in the side face of the lock case 34, and the lower support tube 29 is inserted into the lock case 34 from the lower end of the lock case 34 and penetrates through the circular ring of the spacing ring 37 to enter the stretchable upper support tube 27, so that the lower support tube 29 can be inserted into and move in the stretchable upper support tube 27. The compression spring 38 is arranged between the handle of the spacing ring 37 and the lock case 34, the hand lever 35 is arranged above the handle of the spacing ring 37 and is shielded by the protective shell 36, and the hand lever 35 and the protective shell 36 are connected to the lock case 34 through rivets. The spacing ring 37 is preferably an iron ring having a handle.

The support tube assembly C further includes a connection mechanism, wherein the upper support tube fixing base 25 is connected with the air cylinder connection plate 18 through the connection mechanism; the connection mechanism includes the air cylinder 23, the bushing 24, the four horizontal pull rods 31, and the horizontal pull rod base fixing seat 32, wherein a cylinder barrel at the upper end of the air cylinder 23 is sequentially inserted into the bushing 24 and the air cylinder connection plate 18, and a cylinder piston at the lower end of the air cylinder 23 is fixed in the pull rod base fixing seat 32; and the four horizontal pull rods 31 have one ends respectively riveted to the horizontal pull rod base fixing seat 32 and the other ends respectively riveted to the two stretchable upper support tubes 27 and the two necking upper support tubes 33. The four universal support pads 30 are respectively installed at lower ends of the two lower support tubes 29 and lower ends of the two necking upper support tubes 33.

In the support tube assembly, the bushing 24 is embedded into the horizontal pull rod base fixing seat 32; the cylinder barrel at the upper end of the air cylinder 23 is inserted into the bushing 24, and the cylinder piston at the lower end of the air cylinder 23 is fixed in the pull rod base fixing seat 32 through a clamp spring; the upper ends of the two stretchable upper support tubes 27 and the upper ends of the two necking upper support tubes 33 are respectively received in the upper support tube connectors 26 to be connected to the upper support tube fixing base 25 through rivets, so that the two stretchable upper support tubes 27 and the two necking upper support tubes 33 are able to axially rotate around the rivets; limit pieces used for limiting rotation after the upper support tubes are unfolded outwards are respectively arranged at articulated positions of the upper support tube fixing base 25 and the upper ends of the stretchable upper support tubes 27 as well as articulated positions of the upper support tube fixing base 25 and the upper ends of the necking upper support tubes 33, wherein, two necking ends of the two necking upper support tubes 33 are respectively inserted into openings in two universal support pads 30 and are fixed by means of rivets; the other ends of the two stretchable upper support tubes 27 are respectively pressed into the two support tube locking mechanisms 28; the two lower support tubes 29 to which the universal support pads 30 are respectively riveted are inserted into the two stretchable upper support tubes 27 respectively through the support tube locking mechanisms 28; and the four horizontal pull rods 31 have one ends respectively connected to the horizontal pull rod base fixing seat 32 through rivets and the other ends respectively, through rivets, connected to U-shaped parts welded to the two stretchable upper support tubes 27 and the two necking upper support tubes 33.

The operating process of the adjustable rotary rocking chair is as follows:

The adjustment handle 15 is axially pulled outwards to disengage from the circular hole in one side of the chair frame connection plate 16, and the hole in the other side of the chair frame connection plate 16 is a strip-shaped hole, so that the chair frame connection plate 16 can rotate with the axis of the connection plate rivet 20 as a center when moving forwards and backwards (as shown in FIG. 10 a to FIG. 10 c ); and the adjustment handle 15 is axially pushed inwards to penetrate through the circular hole in one side of the chair frame connection plate 16, so that the chair frame connection plate 16 and the air cylinder connection plate 18 are connected into a whole and cannot swing forwards and backwards (as shown in FIG. 9 a to FIG. 9 c ). Meanwhile, the spring pressure adjustment knob 22 is rotated to be pushed through threads matched with the square neck bolt 17 to upwards press or release the swing spring 21 to adjust the spring torsion.

The adjustment handle 15 is rotated to make a crank segment of the adjustment handle 15 downwards press a cylinder valve of the air cylinder 23, so that compressed air in a lower cavity in the cylinder piston enters an upper cavity of the cylinder piston via a pipe wall duct; the cylinder barrel drives the chair frame assembly A to fall or rise under certain pressure (as shown in FIG. 10 a to FIG. 10 c ); and after the adjustment handle 15 is released, the cylinder piston is tightly pressed on the cylinder barrel by the compressed air to close the pipe wall duct, and when the cylinder barrel is pressed or lifted, the volume of the compressed air is kept unchanged because of the disconnection of the upper cavity and the lower cavity, so that the cylinder barrel cannot fall or rise, and the chair frame assembly A cannot fall or rise accordingly(as shown in FIG. 9 a to FIG. 9 c ).

The unfolding and folding process of the armrest tubes is as follows:

Because the cavities in the spring seats 7 and the button holders 10 are similar to the outline of the limit slider 9 in shape and are slightly larger than the outlines of the limit sliders 9, during rotation, the buttons 11 are pressed to push the limit sliders 9 to compress the springs 8, so that the limit sliders 9 completely disengage from the cavities of the button holders 10 to rotate by means of contact limitation (as shown in FIG. 7 a to FIG. 7 b ). After the buttons 11 are released, the limit sliders 9 abut against the button holders 10 under the effect of the springs 8 until the limit sliders 9 enter the cavities of the button holders 10 when the cavities of the spring seats 7 and the button holders 10 coincide. Each limit slider 9 has a half located in one spring seat 7 and the other half located in one button holder 10 to limit the rotation of the spring seat 7 and the button holder 10 (as shown in FIG. 6 a to FIG. 6 b ).

The operating principle of the support tube locking mechanisms 28 is as follows:

During unlocking (as shown in FIG. 14 ), the lower support tubes 29 penetrate through the circular rings, which are located in the openings of the lock cases 34 and clamped in the limit grooves in the internal walls of the lock cases, of the spacing rings 37, so that the hand levers 35 can be rotated downwards with contact points of the circular rings of the spacing rings 37 in the openings of the lock cases 34 and the internal walls of the lock cases 34 as centers; and the handles of the spacing rings 37 are downwards pressed until the spacing rings 37 are perpendicular to the axes of the lower support tubes 29. At this moment, the internal diameter of the circular rings of the spacing rings 37 is slightly greater than the external diameter of the lower support tubes 29, so that the lower support tubes 29 penetrate through the spacing rings 37 and the lock cases 34 to enter the stretchable upper support tubes 27 to adjust the lengths of the support tubes.

During locking (as shown in FIG. 13 ), the hand levers 35 rotate upwards, at this moment, the handles in the horizontal state of the spacing rings 37 are tilted upwards, with the contact points of the circular rings of the spacing rings 37 in the openings formed in the internal walls of the lock cases 34 and the internal walls of the lock cases 34 as centers, under the effect of the compression springs 38 until the internal edges of the circular rings of the spacing rings 37 make contact with the walls of the lower support tubes 29; the hand levers 35 continuously rotate upwards until they cannot rotate anymore, at this moment, the handles of the spacing rings 37 are separated from the hand levers 35; and when the lower support tubes 29 move upwards to enter the stretchable upper support tubes 27, the spacing rings 37 for clamping the lower support tubes 29 move into the stretchable upper support tubes 27 along with the lower support tubes 29. The spacing rings 37 in the lock cases 34 are limited by the internal walls and cannot move inwards, and the handles are continuously tilted upwards under the combined effects of the inwards movement forces of the compression springs 38 and the lower support tubes 29 to increasingly clamp the lower support tubes 29, so that the movements of the lower support tubes 29 are limited to fulfill the locking effect.

The folding process of the adjustable rotary rocking chair in this embodiment is as follows:

To reduce the packing size for portability, the adjustable rotary rocking chair is divided into three parts: the chair frame assembly A, the adjustment mechanism B, and the support tube assembly C. Wherein, when the chair frame assembly A is folded, the buttons 11 are simultaneously pressed with left and right hands to make the upper vertical armrest tubes 6 and the lower vertical armrest tubes 12 get close, and the back tube 2 together with the turnover bases 3 located at two ends of the back tube 2 rotates inwards to make the back tube 2 in contact with the circular tube of the seat frame 14.

The adjustment mechanism B is connected with the chair frame assembly A through the bolts, and when the adjustment mechanism B is folded, the chair frame assembly A is upwards lifted to pull the air cylinder connection plate 18 out of the cylinder barrel of the air cylinder 23, so that the adjustment mechanism B is separated from the support tube assembly C.

When the support tube assembly C is folded, the hand levers 35 in the locking mechanisms 28 are downwards pulled to a limit position first to make the iron spacing rings 37 perpendicular to the axes of the lower support tubes 29, and the lower support tubes 29 are upwards pushed to enter the stretchable upper support tubes 27 until the universal support pads 30 make contact with the locking mechanisms 28; and the horizontal pull rod base fixing seat 32 is upwards pushed to drive the horizontal pull rods 31 to inwards get close, and meanwhile, the horizontal pull rods 31 pull the stretchable upper support tubes 27 connected to the other ends of the horizontal pull rods 31 to inwards get close, so that the support tube assembly C is folded. Conversely, the support tube assembly C is unfolded.

The above embodiments are preferred ones of the disclosure, and are not intended to limit the protection scope of the disclosure. All transformations and improvements achieved by those skilled in the art on the basis of the design conception of the disclosure should fall within the protection scope of the disclosure. Particularly, various transformations and improvements of components and/or layouts of the combined structure of the subject can be made within the scope of this application, the accompanying drawings, and the claims. In addition to the transformations and improvements of the components and/or layouts, other purposes of the disclosure will also be obvious for those skilled in the art. 

What is claimed is:
 1. An adjustable rotary rocking chair, comprising a chair frame assembly, an adjustment mechanism, and a support tube assembly, wherein the adjustment mechanism is detachably connected with the chair frame assembly and is connected with the support tube assembly in an insertion manner; and the adjustment mechanism includes an adjustment handle (15), a chair frame connection plate (16), a square neck bolt (17), an air cylinder connection plate (18), a swing spring sleeve (19), a connection plate rivet (20), a swing spring (21), and a spring pressure adjustment knob (22), wherein the chair frame connection plate (16) is installed at a bottom of the chair frame assembly, rivet installation holes and handle installation holes are formed in two symmetrical side plates of the chair frame connection plate (16) and two symmetrical side plates of the air cylinder connection plate (18), the connection plate rivet (20) penetrates through the rivet installation holes to rivet the chair frame connection plate (16) to the air cylinder connection plate (18), one said handle installation hole of the chair frame connection plate (16) is a strip-shaped hole, the adjustment handle (15) penetrates through the strip-shaped hole of the chair frame connection plate (16) and the handle installation hole, in a same side, of the air cylinder connection plate (18) and then penetrates through the two handle installation holes on the other side, and the square neck bolt (17) sequentially penetrates through a square hole in the chair frame connection plate (16) and a circular hole in the air cylinder connection plate (18) to connect the swing spring sleeve (19), the swing spring (21), and the spring pressure adjustment knob (22) together in a threaded manner.
 2. The adjustable rotary rocking chair according to claim 1, wherein the support tube assembly includes an upper support tube fixing base (25), four upper support tube connectors (26), two stretchable upper support tubes (27), two support tube locking mechanisms (28), two lower support tubes (29), and two necking upper support tubes (33), wherein the upper support tube fixing base (25) is connected with the air cylinder connection plate (18) of the adjustment mechanism, upper ends of the two stretchable upper support tubes (27) and upper ends of the two necking upper support tubes (33) are respectively received in the upper support tube connectors (26) to be riveted to the upper support tube fixing base (25), and the stretchable upper support tubes (27) are connected with the lower support tubes (29) through the support tube locking mechanisms (28).
 3. The adjustable rotary rocking chair according to claim 2, wherein each said support tube locking mechanism (28) includes a lock case (34), a hand lever (35) riveted to the lock case (34), a spacing ring (37), a compression spring (38), and a protective shell (36), wherein a longitudinal through hole and a side opening communicated with the longitudinal through hole are formed in the lock case (34), a limit groove is formed in an internal wall, opposite to the side opening, of the lock case (34), a circular ring of the spacing ring (37) stretches into the side opening to make an end of the circular ring embedded into the limit groove, and one said lower support tube (29) stretches into the circular ring from a lower end of the longitudinal through hole and then penetrates through the circular ring to stretch into one said stretchable upper support tube (27); and the compression spring (38) is arranged between a lower end of a handle of the spacing ring (37) and the lock case (34) below the side opening, and an upper end of the handle of the spacing ring (37) abuts against the hand lever (35).
 4. The adjustable rotary rocking chair according to claim 2, wherein the support tube assembly further includes a connection mechanism, and the upper support tube fixing base (25) is connected with the air cylinder connection plate (18) through the connection mechanism; and the connection mechanism includes an air cylinder (23), a bushing (24), four horizontal pull rods (31), and a horizontal pull rod base fixing tube (32), wherein a cylinder barrel at an upper end of the air cylinder (23) is sequentially inserted into the bushing (24) and the air cylinder connection plate (18), and a cylinder piston at a lower end of the air cylinder (23) is fixed in the pull rod base fixing tube (32); and the four horizontal pull rods (31) have ends respectively riveted to the horizontal pull rod base fixing tube (32) and ends respectively riveted to the two stretchable upper support tubes (27) and the two necking upper support tubes (33).
 5. The adjustable rotary rocking chair according to claim 2, wherein the support tube assembly further includes four universal support pads (30) respectively installed at lower ends of the two lower support tubes (29) and lower ends of the two necking upper support tubes (33).
 6. The adjustable rotary rocking chair according to claim 1, wherein the chair frame assembly includes a chair cloth (1), a U-shaped back tube (2), two turnover bases (3), two armrest tubes (4), two armrest connection bases (5), a vertical armrest tube, and a seat frame (14), wherein a back end and a cushion end of the chair cloth (1) respectively wrap the U-shaped back tube (2) and a U-shaped tube of the seat frame (14), the two turnover bases (3) have upper ends respectively riveted to two free ends of the U-shaped back tube (2) and front ends riveted to two symmetrical rear ends of the U-shaped tube of the seat frame (14), the two armrest tubes (4) having lower ends provided with the armrest connection bases (5) are respectively riveted to two symmetrical ends of the U-shaped back tube (2), and the vertical armrest tube has an upper end and a lower end respectively riveted to one said armrest connection base (5) and a front end of the U-shaped tube of the seat frame (14).
 7. The adjustable rotary rocking chair according to claim 6, wherein the vertical armrest tube includes two upper vertical armrest tubes (6), two lower vertical armrest tubes (12), and two armrest locking mechanisms, wherein the upper vertical armrest tubes (6) are locked on the lower vertical armrest tubes (12) through the armrest rotation locking mechanisms.
 8. The adjustable rotary rocking chair according to claim 7, wherein each said armrest rotation locking mechanism includes a spring seat (7), a spring (8), a limit slider (9), a button holder (10), a button (11), and a rivet (13), wherein cavities matched with the limit slider (9) are formed in the spring seat (7) and the button holder (10), the rivet (13) sequentially penetrates through the spring seat (7), the spring (8), the limit slider (9), and the button holder (10), and the button (11) is arranged on a side of the button holder (10) and is pressed or released to drive the limit slider (9) to entirely or partially disengage from the cavity in the button holder (10).
 9. The adjustable rotary rocking chair according to claim 3, wherein the support tube assembly further includes a connection mechanism, and the upper support tube fixing base (25) is connected with the air cylinder connection plate (18) through the connection mechanism; and the connection mechanism includes an air cylinder (23), a bushing (24), four horizontal pull rods (31), and a horizontal pull rod base fixing tube (32), wherein a cylinder barrel at an upper end of the air cylinder (23) is sequentially inserted into the bushing (24) and the air cylinder connection plate (18), and a cylinder piston at a lower end of the air cylinder (23) is fixed in the pull rod base fixing tube (32); and the four horizontal pull rods (31) have ends respectively riveted to the horizontal pull rod base fixing tube (32) and ends respectively riveted to the two stretchable upper support tubes (27) and the two necking upper support tubes (33).
 10. The adjustable rotary rocking chair according to claim 3, wherein the support tube assembly further includes four universal support pads (30) respectively installed at lower ends of the two lower support tubes (29) and lower ends of the two necking upper support tubes (33).
 11. The adjustable rotary rocking chair according to claim 2, wherein the chair frame assembly includes a chair cloth (1), a U-shaped back tube (2), two turnover bases (3), two armrest tubes (4), two armrest connection bases (5), a vertical armrest tube, and a seat frame (14), wherein a back end and a cushion end of the chair cloth (1) respectively wrap the U-shaped back tube (2) and a U-shaped tube of the seat frame (14), the two turnover bases (3) have upper ends respectively riveted to two free ends of the U-shaped back tube (2) and front ends riveted to two symmetrical rear ends of the U-shaped tube of the seat frame (14), the two armrest tubes (4) having lower ends provided with the armrest connection bases (5) are respectively riveted to two symmetrical ends of the U-shaped back tube (2), and the vertical armrest tube has an upper end and a lower end respectively riveted to one said armrest connection base (5) and a front end of the U-shaped tube of the seat frame (14).
 12. The adjustable rotary rocking chair according to claim 3, wherein the chair frame assembly includes a chair cloth (1), a U-shaped back tube (2), two turnover bases (3), two armrest tubes (4), two armrest connection bases (5), a vertical armrest tube, and a seat frame (14), wherein a back end and a cushion end of the chair cloth (1) respectively wrap the U-shaped back tube (2) and a U-shaped tube of the seat frame (14), the two turnover bases (3) have upper ends respectively riveted to two free ends of the U-shaped back tube (2) and front ends riveted to two symmetrical rear ends of the U-shaped tube of the seat frame (14), the two armrest tubes (4) having lower ends provided with the armrest connection bases (5) are respectively riveted to two symmetrical ends of the U-shaped back tube (2), and the vertical armrest tube has an upper end and a lower end respectively riveted to one said armrest connection base (5) and a front end of the U-shaped tube of the seat frame (14). 